Webster's Revised Unabridged Dictionary · 1913

Distinguish

Distinguish , transitive verb

[French distinguer, Latin distinguere, distinctum; di- = dis- + stinguere to quench, extinguish; prob. orig., to prick, and so akin to German stechen, English stick, and perh. sting. Compare Extinguish.]

1.
Not set apart from others by visible marks; to make distinctive or discernible by exhibiting differences; to mark off by some characteristic.
Not more distinguished by her purple vest, Than by the charming features of her face. — Dryden
Milton has distinguished the sweetbrier and the eglantine. — Nares
2.
To separate by definition of terms or logical division of a subject with regard to difference; as, to distinguish sounds into high and low.
Moses distinguished the causes of the flood into those that belong to the heavens, and those that belong to the earth. — T. Burnet
3.
To recognize or discern by marks, signs, or characteristic quality or qualities; to know and discriminate (anything) from other things with which it might be confounded; as, to distinguish the sound of a drum.
We are enabled to distinguish good from evil, as well as truth from falsehood. — Watts
Nor more can you distinguish of a man, Than of his outward show. — Shakespeare
4.
To constitute a difference; to make to differ.
Who distinguisheth thee? — 1 Cor. iv. 7. (Douay version)
5.
To separate from others by a mark of honor; to make eminent or known; to confer distinction upon; -- with by or for.
To distinguish themselves by means never tried before. — Johnson

Distinguish , intransitive verb

1.
To make distinctions; to perceive the difference; to exercise discrimination; -- with between; as, a judge distinguishes between cases apparently similar, but differing in principle.
2.
To become distinguished or distinctive; to make one's self or itself discernible. [Rare]
The little embryo... first distinguishes into a little knot. — Jer. Taylor